add param to force either termenum or fieldcache in SimpleFacets
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Key: SOLR-316
URL: https://issues.apache.org/jira/browse/SOLR-316
Project: Solr
Issue Type: Improvement
Reporter: Hoss Man
Priority: Minor
from this thread...
http://www.nabble.com/Slow-facet-with-custom-Analyser-tf4087415.html#a11617565
perhaps we should really have an [f.foo.]facet.field.type=(single|multi)
param to let clients indicate when they know exactly which method they
wnat used (getFacetTermEnumCounts vs getFieldCacheCounts) ... if the
property is not set, the default can be determeined using the
"sf.multiValued() || ft.isTokenized() || ft instanceof BoolField" logic.
...
Or a method FieldType.multiToken(), and a new method
TokenizerFactory/TokenFilterFactory.multiToken() that can be used to
determine this when the FieldType was created (grrr, too bad they
weren't abstract classes)
Or a new attribute in the schema (but I don't like that solution much)
But allowing the user to select the strategy has some merit, esp since
there will be an additional way to find the top "n" when I get around
to finishing my facet-tree-index code.
...
Thanks for the suggestion Chris. I modified SimpleFacets to check for
[f.foo.]facet.field.type==(single|multi)
and the performance has been improved significantly.
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